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Exosomes derived from BMSCs with miR-124-3p inhibitor protects against LPS-induced endometritis through regulation of DUSP6, p-p65 and p-ERK
bioRxiv - Cell Biology Pub Date : 2023-02-02 , DOI: 10.1101/2023.02.02.526752
Yihong Chen , Shan Zheng , Xiumei Zhao , Yi Zhang , Suchai Yu , Juanbing Wei

Endometritis seriously affects women's normal life and work. It has been found that microRNA-123-3p (miR-124-3p) expression is abnormally high expression in the patients of chronic endometritis. However, the underlying mechanism for miR-124-3p regulation of endometritis development remains unclear. In our study, we treated human endometrial epithelial cells (HEECs) with LPS to simulate endometrial injury in vitro. Then, HEEC was treated with miR-124-3p mimics and miR-124-3p inhibitor. Next, exosomes were separated from bone marrow-derived mesenchymal stem cells (BMSCs). In addition, BMSCs were co-cultured with HEEC. Later on, dual-luciferase reporter assay was carried out to validate the regulation between miR-124-3p and DUSP6. Results indicated that LPS inhibited the viability of HEEC in time and dose dependent manner. MiR-124-3p inhibitor reversed apoptosis and viability inhibition of HEEC which were induced by LPS. In addition, we also found exosomes could transfer miR-124-3p from BMSCs to HEEC. Besides, BMSCs/anti-miR-124-3p Exo was observed to abolish LPS-induced viability and proliferation inhibition of HEEC by inducing the apoptosis of HEEC. Moreover, BMSCs/anti-miR-124-3p Exo alleviated inflammation of HEEC induced by LPS via upregulating DUSP6 and downregulating p-p65 and p-ERK. Furthermore, BMSCs/anti-miR-124-3p Exo protected against LPS-induced endometritis in vivo by upregulating DUSP6 and downregulating p-p65 and p-ERK. In conclusion, we found that BMSCs/anti-miR-124-3p Exo might be a promising new alternative to treat endometritis.

中文翻译:

来自具有 miR-124-3p 抑制剂的 BMSCs 的外泌体通过调节 DUSP6、p-p65 和 p-ERK 来预防 LPS 诱导的子宫内膜炎

子宫内膜炎严重影响女性的正常生活和工作。已发现microRNA-123-3p(miR-124-3p)表达在慢性子宫内膜炎患者中异常高表达。然而,miR-124-3p 调节子宫内膜炎发展的潜在机制仍不清楚。在我们的研究中,我们用 LPS 处理人子宫内膜上皮细胞 (HEEC) 以模拟体外子宫内膜损伤。然后,用 miR-124-3p 模拟物和 miR-124-3p 抑制剂处理 HEEC。接下来,将外泌体与骨髓间充质干细胞 (BMSC) 分离。此外,BMSCs 与 HEEC 共培养。随后,进行了双荧光素酶报告基因测定以验证 miR-124-3p 和 DUSP6 之间的调节。结果表明,LPS 以时间和剂量依赖性方式抑制 HEEC 的活力。MiR-124-3p 抑制剂可逆转 LPS 诱导的 HEEC 细胞凋亡和活力抑制。此外,我们还发现外泌体可以将 miR-124-3p 从 BMSCs 转移到 HEEC。此外,观察到 BMSCs/anti-miR-124-3p Exo 通过诱导 HEEC 的凋亡来消除 LPS 诱导的 HEEC 活力和增殖抑制。此外,BMSCs/anti-miR-124-3p Exo 通过上调 DUSP6 和下调 p-p65 和 p-ERK 减轻 LPS 诱导的 HEEC 炎症。此外,BMSCs/anti-miR-124-3p Exo 通过上调 DUSP6 和下调 p-p65 和 p-ERK 在体内保护免受 LPS 诱导的子宫内膜炎。总之,我们发现 BMSCs/anti-miR-124-3p Exo 可能是治疗子宫内膜炎的一种有前途的新选择。我们还发现外泌体可以将 miR-124-3p 从 BMSC 转移到 HEEC。此外,观察到 BMSCs/anti-miR-124-3p Exo 通过诱导 HEEC 的凋亡来消除 LPS 诱导的 HEEC 活力和增殖抑制。此外,BMSCs/anti-miR-124-3p Exo 通过上调 DUSP6 和下调 p-p65 和 p-ERK 减轻 LPS 诱导的 HEEC 炎症。此外,BMSCs/anti-miR-124-3p Exo 通过上调 DUSP6 和下调 p-p65 和 p-ERK 在体内保护免受 LPS 诱导的子宫内膜炎。总之,我们发现 BMSCs/anti-miR-124-3p Exo 可能是治疗子宫内膜炎的一种有前途的新选择。我们还发现外泌体可以将 miR-124-3p 从 BMSC 转移到 HEEC。此外,观察到 BMSCs/anti-miR-124-3p Exo 通过诱导 HEEC 的凋亡来消除 LPS 诱导的 HEEC 活力和增殖抑制。此外,BMSCs/anti-miR-124-3p Exo 通过上调 DUSP6 和下调 p-p65 和 p-ERK 减轻 LPS 诱导的 HEEC 炎症。此外,BMSCs/anti-miR-124-3p Exo 通过上调 DUSP6 和下调 p-p65 和 p-ERK 在体内保护免受 LPS 诱导的子宫内膜炎。总之,我们发现 BMSCs/anti-miR-124-3p Exo 可能是治疗子宫内膜炎的一种有前途的新选择。BMSCs/anti-miR-124-3p Exo 通过上调 DUSP6 和下调 p-p65 和 p-ERK 减轻 LPS 诱导的 HEEC 炎症。此外,BMSCs/anti-miR-124-3p Exo 通过上调 DUSP6 和下调 p-p65 和 p-ERK 在体内保护免受 LPS 诱导的子宫内膜炎。总之,我们发现 BMSCs/anti-miR-124-3p Exo 可能是治疗子宫内膜炎的一种有前途的新选择。BMSCs/anti-miR-124-3p Exo 通过上调 DUSP6 和下调 p-p65 和 p-ERK 减轻 LPS 诱导的 HEEC 炎症。此外,BMSCs/anti-miR-124-3p Exo 通过上调 DUSP6 和下调 p-p65 和 p-ERK 在体内保护免受 LPS 诱导的子宫内膜炎。总之,我们发现 BMSCs/anti-miR-124-3p Exo 可能是治疗子宫内膜炎的一种有前途的新选择。
更新日期:2023-02-03
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